/*
 * Created on 2005-6-9
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.hs.core.utils;

import java.security.MessageDigest;

public class MD5{
    public final static String md5( String s ) {
        char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                'a', 'b', 'c', 'd', 'e', 'f' };
        try {
            byte[] strTemp = s.getBytes();
            MessageDigest mdTemp = MessageDigest.getInstance("MD5");
            mdTemp.update(strTemp);
            byte[] md = mdTemp.digest();
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for( int i = 0; i < j; i++ ) {
                byte byte0 = md[i];
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            
            return new String(str);
        } catch (Exception e) {
            return null;
        }
    }
    public static void main(String [] args){
    	System.out.println(MD5.md5("1"));
    	//856E97DD0585169E68B8183004BCBA30
    	//4b2c36ecdfa122aa586a4d99c9206e0f
    }
}
